US4331568A - 3,7-Dimethyl-3-hydroxy-6-octenenitrile and process for its preparation - Google Patents

3,7-Dimethyl-3-hydroxy-6-octenenitrile and process for its preparation Download PDF

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Publication number
US4331568A
US4331568A US05/888,533 US88853378A US4331568A US 4331568 A US4331568 A US 4331568A US 88853378 A US88853378 A US 88853378A US 4331568 A US4331568 A US 4331568A
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United States
Prior art keywords
hydroxy
dimethyl
octenenitrile
scent
preparation
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US05/888,533
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English (en)
Inventor
Aldo Prevedello
Edoardo Platone
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SnamProgetti SpA
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Assigned to SNAMPROGETTI S P A reassignment SNAMPROGETTI S P A ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PLATONE EDOARDO, PREVEDELLO, ALDO
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles

Definitions

  • the present invention relates to a new compound i.e., 3,7-dimethyl-3-hydroxy-6-octenenitrile and to a process for its preparation.
  • the compound, object of the present invention has the following structural formula: ##STR1## and is a suitable intermediate for organic synthesis.
  • it is suitable material for the preparation of compounds belonging to the class of octenenitriles, as described in U.S. Pat. No. 4,028,395, compounds which, so far have been obtained by arduous and less selective chemical processes.
  • the compound 3,7-dimethyl-3-hydroxy-6-octenenitrile is a valuable perfume intermediate as it is less toxic than the prior art compound 2,6-dimethyl-2-hydroxy-heptenenitrile.
  • the compound 3,7-dimethyl-3-hydroxy-6-octenenitrile is also a stabilizer for perfumes, when used in effective amounts for preventing deterioration of the scent of perfumes such as citral (geranialdehyde) which may be used as a scent for soap cakes or other compositions.
  • perfumes or volatile oils which include fragrant aldehydes, terpenes, alcohols, ketones or phenols, which may be stabilized with the compound of this invention.
  • volatile oils such as lemon, orange, bay, rose, lavendar and the like.
  • volatile oils are well known and are exemplified by the materials listed in Remington's Practice of Pharmacy, 9th Edition, pp. 696-731 which is incorporated by reference.
  • 3,7-dimethyl-3-hydroxy-6-octenenitrile is obtained by reacting 2-methyl-hept-2-ene-6-one with acetonitrile in the presence of strong bases and, particularly, of sodium amide in liquid ammonia.
  • the reaction temperature is kept among -60° and 80° C. and the reaction product, after a fractional distillation in order to separate the final product from unreacted 2-methyl-hept-2-ene-6-one, has been identified by the data obtained by NMR, IR and mass spectroscopy.
  • the new compound is obtained with good yields and selectivities, by the process described hereinafter.
  • the molecular weight by mass spectroscopy is 167.
  • reaction temperature was kept at -33° C. 1 g of anhydrous ferric chloride and then g 8 of metallic sodium were charged under stirring.
  • reaction mixture was poured in a suspension of 400 g of ammonium chloride in 100° cc of anhydrous ammonia.
  • the ammonia was allowed to evaporate and the solid residue was hydrolyzed by the addition of 3 N hydrochloric acid to neutrality.
  • the two layers were separated and the water layer was extracted with ethyl ether.
  • the ether extracts were combined and dried overnight on anhydrous sodium sulphate. After the solvent was removed, the residue was fractionated under vacuum for separating 3,7-dimethyl-3-hydroxy-6-octenenitrile from unreacted 2 methyl-hept-2-ene-one.
  • the selectivity and conversion (calculated by gas chromatography in residual crude product) were respectively 91% and 87%.
  • citral commercial, by FLUKA
  • 20 grams of citral were divided into two equal portions.
  • 5% of 3,7-dimethyl-3-hydroxy-6-octenenitrile i.e. 0.5 gram
  • B the sample with the 5% of the 3,7-dimethyl-3-hydroxy-6-octenenitrile
  • Two soap cakes were prepared by mixing 100 grams of laundry (Marseilles) soap comminuted with 1 gram of sample A and 100 grams of the same soap with 1 gram of the sample B. With these two mixtures there were prepared two soap cakes from each admixture, with prolonged extrusion of homogeneization purposes and then cake pressing.
  • the scent of the soap cakes, as prepared, were identical.
  • the cakes were then maintained in the air and light in a closed room for 30 days and tested twice in a week to ascertain the scent variations, if any.
  • the cakes containing the sample B after 1 month had the same scent and perfume intensity as at the start of the test.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)
  • Detergent Compositions (AREA)
  • Cosmetics (AREA)
  • Fats And Perfumes (AREA)
US05/888,533 1974-10-30 1978-03-21 3,7-Dimethyl-3-hydroxy-6-octenenitrile and process for its preparation Expired - Lifetime US4331568A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT28955/74A IT1025318B (it) 1974-10-30 1974-10-30 3.7 dimetil 3 idrossi 6 octenenitri le e procedimento per la sua preparazione
IT28955A/74 1974-10-30

Related Parent Applications (1)

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US05831057 Continuation-In-Part 1977-09-06

Publications (1)

Publication Number Publication Date
US4331568A true US4331568A (en) 1982-05-25

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ID=11225032

Family Applications (1)

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US05/888,533 Expired - Lifetime US4331568A (en) 1974-10-30 1978-03-21 3,7-Dimethyl-3-hydroxy-6-octenenitrile and process for its preparation

Country Status (28)

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US (1) US4331568A (xx)
JP (1) JPS5934704B2 (xx)
AT (1) AT341492B (xx)
BE (1) BE834897A (xx)
BG (1) BG25073A3 (xx)
BR (1) BR7507201A (xx)
CA (1) CA1047535A (xx)
CS (1) CS191953B2 (xx)
DD (1) DD123740A5 (xx)
DE (1) DE2548420A1 (xx)
DK (1) DK484375A (xx)
EG (1) EG12396A (xx)
ES (1) ES442473A1 (xx)
FR (1) FR2289494A1 (xx)
GB (1) GB1494939A (xx)
HU (1) HU171174B (xx)
IE (1) IE41921B1 (xx)
IN (1) IN146080B (xx)
IT (1) IT1025318B (xx)
LU (1) LU73668A1 (xx)
NL (1) NL162064C (xx)
NO (1) NO140855C (xx)
PL (1) PL102201B1 (xx)
SE (1) SE427180B (xx)
SU (1) SU644379A3 (xx)
TR (1) TR18609A (xx)
YU (1) YU36693B (xx)
ZA (1) ZA756355B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489009A (en) * 1982-03-11 1984-12-18 International Flavors & Fragrances Inc. Process for producing solanone, norsolanadione and intermediates therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938689A1 (de) * 1979-09-25 1981-04-09 Basf Ag, 6700 Ludwigshafen Aliphatische methoxy- und hydroxynitrile, deren herstellung und deren verwendung als riechstoff

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354196A (en) * 1962-12-13 1967-11-21 Rhone Poulenc Sa Chrysanthemic acid intermediates
US3755411A (en) * 1971-02-01 1973-08-28 Zoecon Corp Halo or oxy substituted aliphatic di olefinic nitriles
US3932483A (en) * 1971-06-02 1976-01-13 Sandoz Ltd., (Sandoz Ag) W-Aliphatic and cycloaliphatic-hydrocarbonoxy-2,6-alkadiene and 2-alkene-1-nitriles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354196A (en) * 1962-12-13 1967-11-21 Rhone Poulenc Sa Chrysanthemic acid intermediates
US3755411A (en) * 1971-02-01 1973-08-28 Zoecon Corp Halo or oxy substituted aliphatic di olefinic nitriles
US3932483A (en) * 1971-06-02 1976-01-13 Sandoz Ltd., (Sandoz Ag) W-Aliphatic and cycloaliphatic-hydrocarbonoxy-2,6-alkadiene and 2-alkene-1-nitriles

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
"Rodd's Chemistry of Carbon Compounds", 2nd ed., edited by Coffey, (1965), Elsevier Pub. Co., pp. 39-40. *
"The Chemistry of the Hydroxyl Group", edited by Patai, (1971), Interscience Pub. Co., pp. 689-690. *
Ivanov et al., C.A., 66, (1967), 37394v. *
Julia et al., C.A., 58, (1963), 10091b. *
Rhone-Poulenc, C.A., 61, (1964), 9413h. *
Uchida et al., C.A., 72, (1970), 31371n. *
Vishnyakova et al., 70, C.A., (1969), 96901p. *
Weichet et al., C.A., 72, (1970), 132032h. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489009A (en) * 1982-03-11 1984-12-18 International Flavors & Fragrances Inc. Process for producing solanone, norsolanadione and intermediates therefor

Also Published As

Publication number Publication date
IN146080B (xx) 1979-02-17
SE427180B (sv) 1983-03-14
HU171174B (hu) 1977-11-28
BG25073A3 (en) 1978-07-12
BR7507201A (pt) 1976-08-17
YU266175A (en) 1981-11-13
DE2548420A1 (de) 1976-05-06
NO140855B (no) 1979-08-20
ZA756355B (en) 1976-09-29
IT1025318B (it) 1978-08-10
BE834897A (fr) 1976-04-27
CA1047535A (en) 1979-01-30
SE7512122L (sv) 1976-05-03
FR2289494A1 (fr) 1976-05-28
NL7512622A (nl) 1976-05-04
IE41921L (en) 1976-04-30
JPS5168524A (en) 1976-06-14
CS191953B2 (en) 1979-07-31
PL102201B1 (pl) 1979-03-31
SU644379A3 (ru) 1979-01-25
LU73668A1 (xx) 1976-09-01
YU36693B (en) 1984-08-31
NO753642L (xx) 1976-05-03
NL162064B (nl) 1979-11-15
JPS5934704B2 (ja) 1984-08-24
FR2289494B1 (xx) 1978-04-07
ES442473A1 (es) 1977-03-01
TR18609A (tr) 1977-05-13
DK484375A (da) 1976-05-01
EG12396A (en) 1978-12-31
AU8560375A (en) 1977-04-21
NL162064C (nl) 1980-04-15
AT341492B (de) 1978-02-10
IE41921B1 (en) 1980-04-23
ATA823075A (de) 1977-06-15
DD123740A5 (xx) 1977-01-12
GB1494939A (en) 1977-12-14
NO140855C (no) 1979-11-28

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